Cost of Living in Lake Oswego

Lake Oswego runs genuinely expensive on housing -- among the priciest markets in Oregon -- offset somewhat by Oregon's zero sales tax, though the state's real, current 9.9% top income tax rate is a genuinely significant cost for the city's high-income households.

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Housing: genuinely among the most expensive in Oregon

Zillow's average home value ran $889,944 (up 0.7% year-over-year), with Niche citing a higher median of $932,200 -- both figures genuinely high relative to nearly every other market in this Oregon Tier A wave.

Oregon's income tax hits high earners hardest

Given Lake Oswego's real, disclosed $141,549 median household income, Oregon's graduated income tax (topping out at 9.9% for income above $125,000 single / $250,000 married-filing-jointly) is a genuinely significant, real cost for many Lake Oswego households.

The highest property-tax dollar bill in this Oregon wave

Lake Oswego's median annual property tax bill ($5,187) runs as the highest dollar figure among this Oregon Tier A wave -- reflecting the city's genuinely high underlying home values as much as Clackamas County's own effective rate.

Key takeaways

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Last reviewed: 2026-08-25. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.